Spout fitting



July 14, 1959 R. BLETCHER ET AL SPOUT FITTING 2 Sheets-Sheet 1 Filed Aug. 16, 1955 INVENTORS JUY 14, 1959 R. E. BLETCHER ETAL 2,894,695

SPOUT FITTING Filed Aug. 16. 1955 2 Sheets She v1'. 2

/ez//A/G 0490,

INVENTORS MKM nited States Patent *fiice Patented July 14, 1959 assgnees Application August 16, 1955, Serial No..528,6f7,8 '12 Claims. (Cl. 239-443) 'I'his invention relates to .an improved spout fitting.

,'It is an object of this invention to provide fa ,fiitting adapted to be titted on the endof a sink 4spout which adapts the spout to -be used in conjunction with Va hand- ..spray.

It is Iafurther object of this invention to providegmeans for incorporating a hand spray into an existing spout It is still a further object of this invention 1to provide a spout titting wherein water may be selectively ,dis- :charged through one of two outlets without any A110W `as dripping from the -outlet not in use.

:It is still a further object `of this invention to provide a spout titting which in all respects is anti-.Siphon ,in operation.

.Other objects and advantages will b e'readily apparent :from .the following, description.

`In the drawings: Figure 1 -is a perspective view of a spout having a .spout titting embodying this invention.

Figure 2 is adiagrammatic View of the component elements.

Figure 3 is a section taken vralong line 3-3 of VlFigure -1.

Figure `4 is a section taken along line 4 4 of Figure 3.

Figure 5 is a view similar .to .Figure 4 illustrating 110W through the spray outlet.

`Referring first to Figure 1, the spout is such as might be found in any sink and through which hot or cold water or a mixture of the two is directed and con# trolled by suitable valves. The lfree end of the -spout is -exter-nally threaded to receive internally threaded spout fitting 12, which fitting has two outlets. The vfirst orspout outlet .-is in line with the direction of water flow through the extremity of spout 10 while the second or spray outlet -is in `the vform of tube 14 normal to the direction of water flow through the extremity of spout 10. Onto the tube ,14 a rubber hose 16 is telescopically ixed which hose Aat its opposite end has a hand spray .1-8 actuated by depression of trigger 20.

Assuming iirst, flow is desired through the spout outlet, .the trigger 20 is released shutting oi spray 18 and blocking liow therethrough. As seen in Figure 4, water flows from Vspout 10 into the spout fitting housing 21 whichhas'an internally threaded upper extremity. The housing has, adjacent its upper extremity, an internal shoulder 22 which supports the outer periphery of the strainer 24 which is formed Aof a disk having small 4perforations therein preventing iiow of sand and similar foreign matter through the spout tting. The disk is mounted ina nylon ring 26 which rests upon shoulder 22, permitting easy removal thereof.

After Iflow through the strainer, it passes through valve seat 28. The housing has a second internal shoulder 30 downstream of and of smaller internal diameter, forming a support for valve seat 28. The valve seat is `formed veliminating the necessity of removal of the spout land Y Yreplacement thereof.

io'f a diskhaving a series of apertures therethrough. On the lower or downstream face, fthe valve seatfcarries -a conical protuberance 32.

'Immediately below the'valveseat is positioned .check valve :element 34. vIn this A.embodiment the check valve .element is formed of a soft rubber material having ,an u pper face 36, a 'downwardly projecting circular `side lWall 38, and an -enlarged annular base y40. The upper face 36 has a central aperture 42 which receives the conical protuberance 32 of valve 'seat 28 and Whose diameter is vslightly Vsmaller than the 4diameter of :the base of the conical protuberance. The outer periphery of the upper face 36 is sufhciently large lto assure vthat each of the apertures in the valve seat 28 `will be covered thereby when the valve element ,is in its normal ,position.

Upon ow from vthe -spout .1.0 .into .the housing .and through strainer 24, ,the water ows :through the .apertures in valve seat .28 forcingtheupper face 36 of check valve element 34.downwardly .away yfrom valve seat 28. Flow then proceeds through central aperture .42. ln'the revent Vof ya yreduced .pressure in spout 1.0, backflow is ,prevented by upward movement .of upper face 36 with .thetconicalprotuherance 32 sealing oit `flow through :central aperture 42 and .upper -face 36, blocking .off flow .through the apertures in valve seat 28, thereby providing a dou-ble check valve.

The annular -base ring 40 of `valve element .34 rests upon a ,nozzle disk `44 which :in turnis `supported upon internal shoulder 46 of Vhousing .21. The nozzle disk has a central aperture .48 kthrough ywhich water iiows -in the formwof a jet.

Positioned below or downstream of ythe -nozzle disk 44 is a web ,50 in the housing 21. This Iweb has `a series of flow passages 52 vtherethrough and a .central flow passage 54 partially therethrough. The flow passage 54 is axially aligned with respect to .central aperture of nozzle.disk-44. When flow passage 54 is closed such as by closing off the valve of spray 18, as will Yhereinafter be more fully explained, ywater from the aperture or nozzle 48 backs up in flow passage 54 and iiows through web 50 ..by means yof `passages 52.

The loweror downstream extremity of the housing 21 is externally threaded at 56 to receive .an internally threaded .cap 58. This cap has ya central -opening l6i) through which the -water discharges into the sink.

Clamped ,between the 4extremity vof the housing 21 and internal shoulder 62 of the cap 58 is a screen 64 which functions to finely .divide the iiow of water, 'forming a coherent discharge column. The screen has a central opening 66 which permits air to flow into housing 21 in the `event of `development `of a back-Siphon to break fthe vacuum. This enlarged hole of course can not lbecome plugged with foreign matter as the remainder of the screen conceivably could.

Assuming now that water is llowing through the spout outlet and it is desired to usethe hand spray. The trigger V20 is depressed permitting flow through tube 14 and out the hand spray. This condition is illustrated -in Figure 5. v It is to Abe noted that flow passage 54 terminates before web '50 and is in communication with radial ow passages 68 so that ilow is .through these radial passages, unless blocked, vwith air being drawn back through screen t64, opening66, and ow passages 52 from the spout opening by passage of the jet of water from nozzle 48 into passage 54.

The tube 14 is an integral part of a sleeve 70 which its over the downstream extremity of housing 21 and is held in position by engagement with an external flange 72 on cap 58. Thus water tlows out radial passages 68 into sleeve "79 to tube 14 and hence to the hand spray.

To prevent leakage, a resilient washer 74; is provided surrounding the lower extremity of housing 2l and supported by external ange 76. Likewise a packing member 78 is supported at the upper extremity ot sleeve 7i) mounted upon external shoulder 8@ of the housing 2l. The packing member 78 is preferably formed of a soft resilient material and has depending therefrom a skirt S2. The skirt extends suliiciently low to cover the extremities of radial ow passages 68. When flow is permitted through the hand spray l5, the resilient skirt expands permitting flow through the passages 63. if a back-Siphon should develop in the housing 21 by a drop in line pressure and hence in spout l0, the resilient skirt collapses, covering the ow passages 68 and preventing a back-Siphon developing. To facilitate the exing of skirt 82, it is frequently desirable to cut same at inter vals between the flow passages as indicated at 84.

While what hereinbefore has been described is the preferred embodiment of this invention, it is readily apparent that alterations and modifications can be resorted to without departing from the scope of this invention and such alterations and modications are intended to be included within the scope of the appended claims.

We claim:

l. A device attaching a remote hand spray having a valve thereon to a spout comprising a housing, a web in said housing having an unobstructed how passage therethrough, a further iiow passage in said web communicating with said hand spray, and nozzle means upstream from said web directing flow of water into said lastmentioned flow passage, whereby flow therethrough terminates ow through said unobstructed ow passage.

2. A device attaching a remote hand spray having a valve thereon to a spout comprising a housing, a web in said housing having an unobstructed flow passage therethrough, a further flow passage in said web communicating with said hand spray, nozzle means upstream from said web directing how of water into said last-mentioned ow passage, whereby flow therethrough terminates flow through said unobstructed flow passage, and means forming an air gap between said nozzle means and said last-mentioned low passage.

3. A device attaching a remote hand spray having a valve thereon to a spout comprising a housing, a web in said housing having an unobstructed flow passage therethrough, a further flow passage in said web communicating with said hand spray, nozzle means upstream from said web directing flow of water into said last-mentioned flow passage, whereby tiow therethrough terminates ow through said unobstructed iiow passage, means forrninry an air gap between said nozzle means and said last-mentioned flow passage, and means downstream of said housing venting said housing to the atmosphere.

4. A device attaching a remote hand spray having a valve thereon to a spout comprising, a housing, a web in said housing, an unobstructed iiow passageway through said web discharging water flow therethrough from said housing, a second flow passage in said web, means communicating said second how passage with said hand spray, nozzle means upstream from said web directing flow of water through said housing into a narrow jet Flowing into said second ow passage along the longitudinal axis thereof, whereby llow therethrough terminates flow through said unobstructed flow passage.

5. A device attaching a remote hand spray having a valve thereon to a spout comprising, a housing, a web in said ho an unobstructed ilow passageway through said web discharging water ow therethrough from said housing` a second flow passage in said web, means communicating said second ow passage with said hand spray, nozzle means upstream from said web directing iiow of water through said housing into a narrow jet owing into said second how passage along the longitudinal axis thereof, whereby flow therethrough terni;-

i nates ow through said unobstructed ow passage, and means forming an air gap between said nozzle means and said last-mentioned ow passage.

6. A device attaching a remote hand spray having a valve thereon to a spout comprising, a housing, a web in said housing, an unobstructed flow passageway through said web discharging water flow therethrough from said housing, a second iiow passage in said web, means communicating said second flow passage with said hand spray, nozzle means upstream from said web directing flow of water through said housing into a narrow jet owing into said second ow passage along the longitudinal axis thereof, whereby flow therethrough terminates ow through said unobstructed ow passage, means downstream from said web finely dividing water flowing through said first mentioned flow passages, and discharging same in a coherent stream.

7. A device attaching a remote hand spray having a. valve thereon to a spout comprising, a housing, a web in said housing, an unobstructed ow passageway through said web discharging water flow therethrough from said housing, a second ow passage in said web, means communicating said second flow passage with said hand spray, nozzle means upstream from said web directing flow of water through said housing into a narrow jet flowing into said second how passage along the longitudinal axis thereof, whereby flow therethrough terminates how through said unobstructed flow passage, means forming an air gap between said nozzle means and said last-mentioned flow passage, a screen downstream from said web nely dividing ow through said first-mentioned flow passages and discharging same in a coherent stream, and means forming an aperture in said screen.

8. A device attaching a remote hand spray having a valve thereon to a spout comprising, a housing, a web in said housing, an unobstructed flow passageway through said web discharging water flow therethrough from said housing, a second ow passage in said web, means communicating said second flow passage with said hand spray, nozzle means upstream from said web directing ow of water through said housing into a narrow jet flowing into said second flow passage along the longitudinal axis thereof, whereby flow therethrough terminates ow through said unobstructed ow passage, and check valve means between said nozzle means and said spout.

9i A device attaching a remote hand spray having a valve thereon to a spout comprising, a housing, a web in said housing, an unobstructed how passageway through said web discharging water how therethrough from said housing, a second flow passage in said web, means communicating said second flow passage with said hand spray, nozzle means upstream from said web directing ow of water through said housing into a narrow jet owing into said second flow passage along the longitudinal axis thereof, whereby flow therethrough terminates flow through said unobstructed flow passage, check valve means between said nozzle means and said spout, and check valve means between said hand spray and said second iiow passages.

l0. A device attaching a remote hand spray having a valve thereon to a spout comprising, a housing adapted to be affixed to said spout, a web in said housing transverse to ow therethrough, unobstructed longitudinal flow passages through said web, a screen downstream of said web having a central aperture therein, an additional flow passage extending into said web along the axis of flow of water therethrough and communicating with the exterior of said housing, a sleeve receiving said housing and forming a discharge passage communicating with said additional ow passage, means connecting said hand spray with said discharge passage, and nozzle means directing ow through said housing into said additional ow passage, whereby flow therethrough terminates flow through said unobstructed how passage.

11. A device attaching a remote hand spray having a valve thereon to a spout comprising, a housing adapted to be axed to said spout, a web in said housing transverse to flow therethrough, unobstructed longitudinal How passages through said web, a screen downstream of said web having a central aperture therein, an additional ow passage in said web, means communicating said additional How passage with said hand spray, nozzle means directing flow through said housing into said additional ow passage, whereby flow therethrough terminates 110W through said unobstructed ow passage, and a resilient check valve surrounding said housing covering said exterior of said additional ow passage.

12. A device attaching a remote hand spray having a valve thereon to a spout comprising, a housing adapted to be aiiixed to said spout, a web in said housing transverse to ow therethrough, unobstructed longitudinal ow passages through said web, a screen downstream of said web having a central aperture therein, an additional flow passage extending into said web along the axis of flow of water therethrough and communicating with the exterior of said housing, a sleeve receiving said housing and forming a discharge passage communicating With said additional ow passage, means connecting said hand spray with said discharge passage, nozzle means directing ow through said housing into said additional ow passage, whereby ow therethrough terminates ow through said unobstructed ow passage, and a resilient check valve surrounding said housing covering said exterior of said additional ow passage.

References Cited in the le of this patent UNITED STATES PATENTS 1,256,600 Schossow Feb. 19, 1918 2,043,714 Schellin June 9, 1936 2,238,588 Hagopian Apr. 15, 1941 2,395,227 Lewis Feb. 19, 1946 2,487,023 Lehmann Nov. 1, 1949 2,769,454 Bletcher et al. Nov. 6, 1956 

